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Exam 9: Network Fundamentals

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Question 21

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What is a DMZ and what is it used for?

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In a computer network,a DMZ ac...

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Question 22

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The main difference between TCP and UDP packets is

A) UDP packets are a more widely used protocol.
B) TCP packets are smaller and thus more efficient to use.
C) TCP packets are connection oriented,whereas UPD packets are connectionless.
D) UDP is considered to be more reliable because it performs error checking.

E) C) and D)
F) B) and D)

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Question 23

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Which protocol is responsible for resolving an IP address to a MAC address?

ICMP is a connection-oriented protocol.

The buffer between the outer network where there are no controls and the inner secure network is referred to as the

The series of worldwide interconnected networks is referred to as the

A logical implementation of a LAN that allows computers connected to different physical networks to act and communicate as if they were on the same physical network is referred to as a

Encapsulating packets so they can traverse the network in a secure,confidential manner is referred to as

A(n) _______ class address supports 65,000 hosts on each of 16,000 networks,and allows three sections of the IP address to be devoted to host addressing.

Which of the following is NOT a network topology?

Which transport layer protocol is connection oriented?

DNS resolves a domain name to an IP address.

What is NAT and what is it used for?

TCP is connectionless and has lower overhead than UDP.

Remote Packet Delivery (where packets are delivered to a remote location)uses _________ addresses to send packets.

UDP uses a three-way handshake to establish connections.

The network that is an extension of a selected portion of a company's intranet to external partners is referred to as the

Another term for an IP packet is _______________.

Which transport layer protocol is connectionless?

Unfortunately hackers abuse the ICMP protocol by using it to